By which two processes does glucose enter cells in the human body?
Active transport and diffusion.
Glucose is transported by active transport, against the concentration gradient, from the gut into intestinal epithelial cells. Whereas glucose is transported by facilitated diffusion into red blood cells.
In the gut the glucose level is high so if facilitated diffusion int the intestinal epithelial cells occurred it could be lethal so active transport is needed to bypass this concentration gradient. Where as red blood cells have a low glucose level so facilitated diffusion along a concentration gradient is suited in this situation.
RS
Related Biology GCSE answers
All answers ▸Tom and Lesley are married and have a child, Sally, who has Cystic Fibrosis. Lesley has just found out she is pregnant, so what is the probability that the baby will have the condition?
Describe the function of receptors in the skin?
What is peristalsis?
The average lifespan of a human male can vary from 40 years to 85 years. The lifespan partly depends on the things available in the country where the man lives. Suggest three things that would increase the chance of a man having a longer lifespan.